The second was a 41-year-old woman from Elgin. Health officials say both had underlying medical conditions.
The city of Chicago is adding a seventh flu vaccine location at Malcolm X College on West Van Buren.
Starting tomorrow and for the following two Saturdays, the vaccine will be offered from nine a-m until two in the afternoon.
Over the last six days, city health workers have vaccinated 42-thousand people.
"No one has received anywhere near the allocations that we thought we would have had by this time. So therefore we're being as prudent as we can to get the vaccine to the places where we think it will do the best to get tot the people who need it most," said Dr. Terry Mason, Chicago Dept. of Public Health.